I've finished sewing all 54 blocks, each made of 15 squares.
I've laid the blocks out on the floor, moving furniture to make enough room. I didn't fuss too much about what went where – just changed the place of a couple and left it at that.
I ordered 7 yards of fabric for the back.
Now to sew it all together and come up with a quilting plan. This one may have to be out-sourced to a long-arm quilter. It is one huge quilt!